Commit | Line | Data |
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b4b4b794 KI |
1 | /* Remote debugging interface for M32R/SDI. |
2 | ||
ecd75fc8 | 3 | Copyright (C) 2003-2014 Free Software Foundation, Inc. |
b4b4b794 KI |
4 | |
5 | Contributed by Renesas Technology Co. | |
6 | Written by Kei Sakamoto <sakamoto.kei@renesas.com>. | |
7 | ||
8 | This file is part of GDB. | |
9 | ||
10 | This program is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 12 | the Free Software Foundation; either version 3 of the License, or |
b4b4b794 KI |
13 | (at your option) any later version. |
14 | ||
15 | This program is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 21 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
b4b4b794 KI |
22 | |
23 | #include "defs.h" | |
24 | #include "gdbcmd.h" | |
25 | #include "gdbcore.h" | |
26 | #include "inferior.h" | |
45741a9c | 27 | #include "infrun.h" |
b4b4b794 KI |
28 | #include "target.h" |
29 | #include "regcache.h" | |
0e9f083f | 30 | #include <string.h> |
e5ef4d75 | 31 | #include "gdbthread.h" |
b4b4b794 KI |
32 | #include <ctype.h> |
33 | #include <signal.h> | |
cbba9205 | 34 | #ifdef __MINGW32__ |
b467f580 | 35 | #include <winsock2.h> |
cbba9205 | 36 | #else |
b4b4b794 | 37 | #include <netinet/in.h> |
cbba9205 | 38 | #endif |
b4b4b794 KI |
39 | #include <sys/types.h> |
40 | #include <sys/time.h> | |
b4b4b794 | 41 | #include <time.h> |
cbb099e8 | 42 | #include "gdb_bfd.h" |
529480d0 | 43 | #include "cli/cli-utils.h" |
b4b4b794 KI |
44 | |
45 | #include "serial.h" | |
46 | ||
47 | /* Descriptor for I/O to remote machine. */ | |
48 | ||
49 | static struct serial *sdi_desc = NULL; | |
50 | ||
51 | #define SDI_TIMEOUT 30 | |
52 | ||
53 | ||
54 | #define SDIPORT 3232 | |
55 | ||
56 | static char chip_name[64]; | |
57 | ||
58 | static int step_mode; | |
59 | static unsigned long last_pc_addr = 0xffffffff; | |
60 | static unsigned char last_pc_addr_data[2]; | |
61 | ||
62 | static int mmu_on = 0; | |
63 | ||
64 | static int use_ib_breakpoints = 1; | |
65 | ||
66 | #define MAX_BREAKPOINTS 1024 | |
67 | static int max_ib_breakpoints; | |
68 | static unsigned long bp_address[MAX_BREAKPOINTS]; | |
69 | static unsigned char bp_data[MAX_BREAKPOINTS][4]; | |
b4b4b794 KI |
70 | |
71 | /* dbt -> nop */ | |
72 | static const unsigned char dbt_bp_entry[] = { | |
73 | 0x10, 0xe0, 0x70, 0x00 | |
74 | }; | |
75 | ||
76 | #define MAX_ACCESS_BREAKS 4 | |
77 | static int max_access_breaks; | |
78 | static unsigned long ab_address[MAX_ACCESS_BREAKS]; | |
79 | static unsigned int ab_type[MAX_ACCESS_BREAKS]; | |
80 | static unsigned int ab_size[MAX_ACCESS_BREAKS]; | |
81 | static CORE_ADDR hit_watchpoint_addr = 0; | |
82 | ||
83 | static int interrupted = 0; | |
84 | ||
85 | /* Forward data declarations */ | |
86 | extern struct target_ops m32r_ops; | |
87 | ||
e5ef4d75 PA |
88 | /* This is the ptid we use while we're connected to the remote. Its |
89 | value is arbitrary, as the target doesn't have a notion of | |
90 | processes or threads, but we need something non-null to place in | |
91 | inferior_ptid. */ | |
92 | static ptid_t remote_m32r_ptid; | |
b4b4b794 KI |
93 | |
94 | /* Commands */ | |
95 | #define SDI_OPEN 1 | |
96 | #define SDI_CLOSE 2 | |
97 | #define SDI_RELEASE 3 | |
98 | #define SDI_READ_CPU_REG 4 | |
99 | #define SDI_WRITE_CPU_REG 5 | |
100 | #define SDI_READ_MEMORY 6 | |
101 | #define SDI_WRITE_MEMORY 7 | |
102 | #define SDI_EXEC_CPU 8 | |
103 | #define SDI_STOP_CPU 9 | |
104 | #define SDI_WAIT_FOR_READY 10 | |
105 | #define SDI_GET_ATTR 11 | |
106 | #define SDI_SET_ATTR 12 | |
107 | #define SDI_STATUS 13 | |
108 | ||
109 | /* Attributes */ | |
110 | #define SDI_ATTR_NAME 1 | |
111 | #define SDI_ATTR_BRK 2 | |
112 | #define SDI_ATTR_ABRK 3 | |
113 | #define SDI_ATTR_CACHE 4 | |
114 | #define SDI_CACHE_TYPE_M32102 0 | |
115 | #define SDI_CACHE_TYPE_CHAOS 1 | |
116 | #define SDI_ATTR_MEM_ACCESS 5 | |
117 | #define SDI_MEM_ACCESS_DEBUG_DMA 0 | |
118 | #define SDI_MEM_ACCESS_MON_CODE 1 | |
119 | ||
120 | /* Registers */ | |
121 | #define SDI_REG_R0 0 | |
122 | #define SDI_REG_R1 1 | |
123 | #define SDI_REG_R2 2 | |
124 | #define SDI_REG_R3 3 | |
125 | #define SDI_REG_R4 4 | |
126 | #define SDI_REG_R5 5 | |
127 | #define SDI_REG_R6 6 | |
128 | #define SDI_REG_R7 7 | |
129 | #define SDI_REG_R8 8 | |
130 | #define SDI_REG_R9 9 | |
131 | #define SDI_REG_R10 10 | |
132 | #define SDI_REG_R11 11 | |
133 | #define SDI_REG_R12 12 | |
134 | #define SDI_REG_FP 13 | |
135 | #define SDI_REG_LR 14 | |
136 | #define SDI_REG_SP 15 | |
137 | #define SDI_REG_PSW 16 | |
138 | #define SDI_REG_CBR 17 | |
139 | #define SDI_REG_SPI 18 | |
140 | #define SDI_REG_SPU 19 | |
141 | #define SDI_REG_CR4 20 | |
142 | #define SDI_REG_EVB 21 | |
143 | #define SDI_REG_BPC 22 | |
144 | #define SDI_REG_CR7 23 | |
145 | #define SDI_REG_BBPSW 24 | |
146 | #define SDI_REG_CR9 25 | |
147 | #define SDI_REG_CR10 26 | |
148 | #define SDI_REG_CR11 27 | |
149 | #define SDI_REG_CR12 28 | |
150 | #define SDI_REG_WR 29 | |
151 | #define SDI_REG_BBPC 30 | |
152 | #define SDI_REG_PBP 31 | |
153 | #define SDI_REG_ACCH 32 | |
154 | #define SDI_REG_ACCL 33 | |
155 | #define SDI_REG_ACC1H 34 | |
156 | #define SDI_REG_ACC1L 35 | |
157 | ||
158 | ||
0df8b418 | 159 | /* Low level communication functions. */ |
b4b4b794 | 160 | |
0df8b418 | 161 | /* Check an ack packet from the target. */ |
b4b4b794 KI |
162 | static int |
163 | get_ack (void) | |
164 | { | |
165 | int c; | |
166 | ||
717eb1cf | 167 | if (!sdi_desc) |
b4b4b794 KI |
168 | return -1; |
169 | ||
170 | c = serial_readchar (sdi_desc, SDI_TIMEOUT); | |
171 | ||
172 | if (c < 0) | |
173 | return -1; | |
174 | ||
717eb1cf | 175 | if (c != '+') /* error */ |
b4b4b794 KI |
176 | return -1; |
177 | ||
178 | return 0; | |
179 | } | |
180 | ||
0df8b418 | 181 | /* Send data to the target and check an ack packet. */ |
b4b4b794 | 182 | static int |
a1583b1f | 183 | send_data (const void *buf, int len) |
b4b4b794 | 184 | { |
717eb1cf | 185 | if (!sdi_desc) |
b4b4b794 KI |
186 | return -1; |
187 | ||
188 | if (serial_write (sdi_desc, buf, len) != 0) | |
189 | return -1; | |
190 | ||
191 | if (get_ack () == -1) | |
192 | return -1; | |
193 | ||
194 | return len; | |
195 | } | |
196 | ||
0df8b418 | 197 | /* Receive data from the target. */ |
b4b4b794 KI |
198 | static int |
199 | recv_data (void *buf, int len) | |
200 | { | |
201 | int total = 0; | |
202 | int c; | |
203 | ||
717eb1cf | 204 | if (!sdi_desc) |
b4b4b794 KI |
205 | return -1; |
206 | ||
207 | while (total < len) | |
208 | { | |
209 | c = serial_readchar (sdi_desc, SDI_TIMEOUT); | |
210 | ||
211 | if (c < 0) | |
212 | return -1; | |
213 | ||
214 | ((unsigned char *) buf)[total++] = c; | |
215 | } | |
216 | ||
217 | return len; | |
218 | } | |
219 | ||
0df8b418 | 220 | /* Store unsigned long parameter on packet. */ |
b4b4b794 KI |
221 | static void |
222 | store_long_parameter (void *buf, long val) | |
223 | { | |
224 | val = htonl (val); | |
225 | memcpy (buf, &val, 4); | |
226 | } | |
227 | ||
e22f895c KI |
228 | static int |
229 | send_cmd (unsigned char cmd) | |
230 | { | |
231 | unsigned char buf[1]; | |
123f5f96 | 232 | |
e22f895c KI |
233 | buf[0] = cmd; |
234 | return send_data (buf, 1); | |
235 | } | |
236 | ||
237 | static int | |
238 | send_one_arg_cmd (unsigned char cmd, unsigned char arg1) | |
239 | { | |
240 | unsigned char buf[2]; | |
123f5f96 | 241 | |
e22f895c KI |
242 | buf[0] = cmd; |
243 | buf[1] = arg1; | |
244 | return send_data (buf, 2); | |
245 | } | |
246 | ||
247 | static int | |
248 | send_two_arg_cmd (unsigned char cmd, unsigned char arg1, unsigned long arg2) | |
249 | { | |
250 | unsigned char buf[6]; | |
123f5f96 | 251 | |
e22f895c KI |
252 | buf[0] = cmd; |
253 | buf[1] = arg1; | |
254 | store_long_parameter (buf + 2, arg2); | |
255 | return send_data (buf, 6); | |
256 | } | |
257 | ||
258 | static int | |
259 | send_three_arg_cmd (unsigned char cmd, unsigned long arg1, unsigned long arg2, | |
260 | unsigned long arg3) | |
261 | { | |
262 | unsigned char buf[13]; | |
123f5f96 | 263 | |
e22f895c KI |
264 | buf[0] = cmd; |
265 | store_long_parameter (buf + 1, arg1); | |
266 | store_long_parameter (buf + 5, arg2); | |
267 | store_long_parameter (buf + 9, arg3); | |
268 | return send_data (buf, 13); | |
269 | } | |
270 | ||
271 | static unsigned char | |
272 | recv_char_data (void) | |
273 | { | |
274 | unsigned char val; | |
123f5f96 | 275 | |
e22f895c KI |
276 | recv_data (&val, 1); |
277 | return val; | |
278 | } | |
279 | ||
280 | static unsigned long | |
281 | recv_long_data (void) | |
282 | { | |
283 | unsigned long val; | |
123f5f96 | 284 | |
e22f895c KI |
285 | recv_data (&val, 4); |
286 | return ntohl (val); | |
287 | } | |
288 | ||
289 | ||
0df8b418 | 290 | /* Check if MMU is on. */ |
b4b4b794 KI |
291 | static void |
292 | check_mmu_status (void) | |
293 | { | |
294 | unsigned long val; | |
b4b4b794 | 295 | |
0df8b418 | 296 | /* Read PC address. */ |
e22f895c | 297 | if (send_one_arg_cmd (SDI_READ_CPU_REG, SDI_REG_BPC) == -1) |
b4b4b794 | 298 | return; |
e22f895c | 299 | val = recv_long_data (); |
b4b4b794 KI |
300 | if ((val & 0xc0000000) == 0x80000000) |
301 | { | |
302 | mmu_on = 1; | |
303 | return; | |
304 | } | |
305 | ||
0df8b418 | 306 | /* Read EVB address. */ |
e22f895c | 307 | if (send_one_arg_cmd (SDI_READ_CPU_REG, SDI_REG_EVB) == -1) |
b4b4b794 | 308 | return; |
e22f895c | 309 | val = recv_long_data (); |
b4b4b794 KI |
310 | if ((val & 0xc0000000) == 0x80000000) |
311 | { | |
312 | mmu_on = 1; | |
313 | return; | |
314 | } | |
315 | ||
316 | mmu_on = 0; | |
317 | } | |
318 | ||
319 | ||
320 | /* This is called not only when we first attach, but also when the | |
321 | user types "run" after having attached. */ | |
322 | static void | |
136d6dae VP |
323 | m32r_create_inferior (struct target_ops *ops, char *execfile, |
324 | char *args, char **env, int from_tty) | |
b4b4b794 KI |
325 | { |
326 | CORE_ADDR entry_pt; | |
327 | ||
328 | if (args && *args) | |
8a3fe4f8 | 329 | error (_("Cannot pass arguments to remote STDEBUG process")); |
b4b4b794 KI |
330 | |
331 | if (execfile == 0 || exec_bfd == 0) | |
8a3fe4f8 | 332 | error (_("No executable file specified")); |
b4b4b794 KI |
333 | |
334 | if (remote_debug) | |
335 | fprintf_unfiltered (gdb_stdlog, "m32r_create_inferior(%s,%s)\n", execfile, | |
336 | args); | |
337 | ||
338 | entry_pt = bfd_get_start_address (exec_bfd); | |
339 | ||
340 | /* The "process" (board) is already stopped awaiting our commands, and | |
341 | the program is already downloaded. We just set its PC and go. */ | |
342 | ||
88056fbb | 343 | clear_proceed_status (0); |
b4b4b794 KI |
344 | |
345 | /* Tell wait_for_inferior that we've started a new process. */ | |
346 | init_wait_for_inferior (); | |
347 | ||
348 | /* Set up the "saved terminal modes" of the inferior | |
349 | based on what modes we are starting it with. */ | |
350 | target_terminal_init (); | |
351 | ||
352 | /* Install inferior's terminal modes. */ | |
353 | target_terminal_inferior (); | |
354 | ||
fb14de7b | 355 | regcache_write_pc (get_current_regcache (), entry_pt); |
b4b4b794 KI |
356 | } |
357 | ||
358 | /* Open a connection to a remote debugger. | |
359 | NAME is the filename used for communication. */ | |
360 | ||
361 | static void | |
014f9477 | 362 | m32r_open (const char *args, int from_tty) |
b4b4b794 KI |
363 | { |
364 | struct hostent *host_ent; | |
365 | struct sockaddr_in server_addr; | |
366 | char *port_str, hostname[256]; | |
367 | int port; | |
b4b4b794 KI |
368 | int i, n; |
369 | int yes = 1; | |
370 | ||
371 | if (remote_debug) | |
372 | fprintf_unfiltered (gdb_stdlog, "m32r_open(%d)\n", from_tty); | |
373 | ||
374 | target_preopen (from_tty); | |
375 | ||
376 | push_target (&m32r_ops); | |
377 | ||
378 | if (args == NULL) | |
8c042590 | 379 | xsnprintf (hostname, sizeof (hostname), "localhost:%d", SDIPORT); |
b4b4b794 KI |
380 | else |
381 | { | |
382 | port_str = strchr (args, ':'); | |
383 | if (port_str == NULL) | |
8c042590 | 384 | xsnprintf (hostname, sizeof (hostname), "%s:%d", args, SDIPORT); |
b4b4b794 | 385 | else |
8c042590 | 386 | xsnprintf (hostname, sizeof (hostname), "%s", args); |
b4b4b794 KI |
387 | } |
388 | ||
389 | sdi_desc = serial_open (hostname); | |
390 | if (!sdi_desc) | |
8a3fe4f8 | 391 | error (_("Connection refused.")); |
b4b4b794 KI |
392 | |
393 | if (get_ack () == -1) | |
8a3fe4f8 | 394 | error (_("Cannot connect to SDI target.")); |
b4b4b794 | 395 | |
e22f895c | 396 | if (send_cmd (SDI_OPEN) == -1) |
8a3fe4f8 | 397 | error (_("Cannot connect to SDI target.")); |
b4b4b794 | 398 | |
0df8b418 | 399 | /* Get maximum number of ib breakpoints. */ |
e22f895c KI |
400 | send_one_arg_cmd (SDI_GET_ATTR, SDI_ATTR_BRK); |
401 | max_ib_breakpoints = recv_char_data (); | |
b4b4b794 KI |
402 | if (remote_debug) |
403 | printf_filtered ("Max IB Breakpoints = %d\n", max_ib_breakpoints); | |
404 | ||
0df8b418 | 405 | /* Initialize breakpoints. */ |
b4b4b794 KI |
406 | for (i = 0; i < MAX_BREAKPOINTS; i++) |
407 | bp_address[i] = 0xffffffff; | |
408 | ||
0df8b418 | 409 | /* Get maximum number of access breaks. */ |
e22f895c KI |
410 | send_one_arg_cmd (SDI_GET_ATTR, SDI_ATTR_ABRK); |
411 | max_access_breaks = recv_char_data (); | |
b4b4b794 KI |
412 | if (remote_debug) |
413 | printf_filtered ("Max Access Breaks = %d\n", max_access_breaks); | |
414 | ||
0df8b418 | 415 | /* Initialize access breask. */ |
b4b4b794 KI |
416 | for (i = 0; i < MAX_ACCESS_BREAKS; i++) |
417 | ab_address[i] = 0x00000000; | |
418 | ||
419 | check_mmu_status (); | |
420 | ||
0df8b418 | 421 | /* Get the name of chip on target board. */ |
e22f895c | 422 | send_one_arg_cmd (SDI_GET_ATTR, SDI_ATTR_NAME); |
b4b4b794 KI |
423 | recv_data (chip_name, 64); |
424 | ||
425 | if (from_tty) | |
426 | printf_filtered ("Remote %s connected to %s\n", target_shortname, | |
427 | chip_name); | |
428 | } | |
429 | ||
0df8b418 | 430 | /* Close out all files and local state before this target loses control. */ |
b4b4b794 KI |
431 | |
432 | static void | |
de90e03d | 433 | m32r_close (struct target_ops *self) |
b4b4b794 | 434 | { |
b4b4b794 | 435 | if (remote_debug) |
460014f5 | 436 | fprintf_unfiltered (gdb_stdlog, "m32r_close()\n"); |
b4b4b794 KI |
437 | |
438 | if (sdi_desc) | |
439 | { | |
e22f895c | 440 | send_cmd (SDI_CLOSE); |
b4b4b794 KI |
441 | serial_close (sdi_desc); |
442 | sdi_desc = NULL; | |
443 | } | |
444 | ||
445 | inferior_ptid = null_ptid; | |
e5ef4d75 | 446 | delete_thread_silent (remote_m32r_ptid); |
b4b4b794 KI |
447 | return; |
448 | } | |
449 | ||
450 | /* Tell the remote machine to resume. */ | |
451 | ||
452 | static void | |
28439f5e | 453 | m32r_resume (struct target_ops *ops, |
2ea28649 | 454 | ptid_t ptid, int step, enum gdb_signal sig) |
b4b4b794 KI |
455 | { |
456 | unsigned long pc_addr, bp_addr, ab_addr; | |
e22f895c | 457 | int ib_breakpoints; |
b4b4b794 KI |
458 | unsigned char buf[13]; |
459 | int i; | |
460 | ||
461 | if (remote_debug) | |
462 | { | |
463 | if (step) | |
464 | fprintf_unfiltered (gdb_stdlog, "\nm32r_resume(step)\n"); | |
465 | else | |
466 | fprintf_unfiltered (gdb_stdlog, "\nm32r_resume(cont)\n"); | |
467 | } | |
468 | ||
469 | check_mmu_status (); | |
470 | ||
fb14de7b | 471 | pc_addr = regcache_read_pc (get_current_regcache ()); |
b4b4b794 KI |
472 | if (remote_debug) |
473 | fprintf_unfiltered (gdb_stdlog, "pc <= 0x%lx\n", pc_addr); | |
474 | ||
475 | /* At pc address there is a parallel instruction with +2 offset, | |
0df8b418 | 476 | so we have to make it a serial instruction or avoid it. */ |
b4b4b794 KI |
477 | if (pc_addr == last_pc_addr) |
478 | { | |
0df8b418 | 479 | /* Avoid a parallel nop. */ |
b4b4b794 KI |
480 | if (last_pc_addr_data[0] == 0xf0 && last_pc_addr_data[1] == 0x00) |
481 | { | |
482 | pc_addr += 2; | |
0df8b418 | 483 | /* Now we can forget this instruction. */ |
b4b4b794 KI |
484 | last_pc_addr = 0xffffffff; |
485 | } | |
0df8b418 | 486 | /* Clear a parallel bit. */ |
b4b4b794 KI |
487 | else |
488 | { | |
489 | buf[0] = SDI_WRITE_MEMORY; | |
f5656ead | 490 | if (gdbarch_byte_order (target_gdbarch ()) == BFD_ENDIAN_BIG) |
b4b4b794 KI |
491 | store_long_parameter (buf + 1, pc_addr); |
492 | else | |
493 | store_long_parameter (buf + 1, pc_addr - 1); | |
494 | store_long_parameter (buf + 5, 1); | |
495 | buf[9] = last_pc_addr_data[0] & 0x7f; | |
496 | send_data (buf, 10); | |
497 | } | |
498 | } | |
499 | ||
0df8b418 | 500 | /* Set PC. */ |
e22f895c | 501 | send_two_arg_cmd (SDI_WRITE_CPU_REG, SDI_REG_BPC, pc_addr); |
b4b4b794 | 502 | |
0df8b418 | 503 | /* step mode. */ |
b4b4b794 KI |
504 | step_mode = step; |
505 | if (step) | |
506 | { | |
0df8b418 | 507 | /* Set PBP. */ |
e22f895c | 508 | send_two_arg_cmd (SDI_WRITE_CPU_REG, SDI_REG_PBP, pc_addr | 1); |
b4b4b794 KI |
509 | } |
510 | else | |
511 | { | |
0df8b418 | 512 | /* Unset PBP. */ |
e22f895c KI |
513 | send_two_arg_cmd (SDI_WRITE_CPU_REG, SDI_REG_PBP, 0x00000000); |
514 | } | |
515 | ||
516 | if (use_ib_breakpoints) | |
517 | ib_breakpoints = max_ib_breakpoints; | |
518 | else | |
519 | ib_breakpoints = 0; | |
520 | ||
0df8b418 | 521 | /* Set ib breakpoints. */ |
e22f895c KI |
522 | for (i = 0; i < ib_breakpoints; i++) |
523 | { | |
524 | bp_addr = bp_address[i]; | |
b4b4b794 | 525 | |
e22f895c KI |
526 | if (bp_addr == 0xffffffff) |
527 | continue; | |
528 | ||
0df8b418 | 529 | /* Set PBP. */ |
f5656ead | 530 | if (gdbarch_byte_order (target_gdbarch ()) == BFD_ENDIAN_BIG) |
e22f895c KI |
531 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8000 + 4 * i, 4, |
532 | 0x00000006); | |
b4b4b794 | 533 | else |
e22f895c KI |
534 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8000 + 4 * i, 4, |
535 | 0x06000000); | |
536 | ||
537 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8080 + 4 * i, 4, bp_addr); | |
538 | } | |
539 | ||
0df8b418 | 540 | /* Set dbt breakpoints. */ |
e22f895c KI |
541 | for (i = ib_breakpoints; i < MAX_BREAKPOINTS; i++) |
542 | { | |
543 | bp_addr = bp_address[i]; | |
544 | ||
545 | if (bp_addr == 0xffffffff) | |
546 | continue; | |
547 | ||
548 | if (!mmu_on) | |
549 | bp_addr &= 0x7fffffff; | |
b4b4b794 | 550 | |
0df8b418 | 551 | /* Write DBT instruction. */ |
e22f895c | 552 | buf[0] = SDI_WRITE_MEMORY; |
492e5c6b | 553 | store_long_parameter (buf + 1, (bp_addr & 0xfffffffc)); |
e22f895c KI |
554 | store_long_parameter (buf + 5, 4); |
555 | if ((bp_addr & 2) == 0 && bp_addr != (pc_addr & 0xfffffffc)) | |
b4b4b794 | 556 | { |
f5656ead | 557 | if (gdbarch_byte_order (target_gdbarch ()) == BFD_ENDIAN_BIG) |
b4b4b794 | 558 | { |
e22f895c KI |
559 | buf[9] = dbt_bp_entry[0]; |
560 | buf[10] = dbt_bp_entry[1]; | |
561 | buf[11] = dbt_bp_entry[2]; | |
562 | buf[12] = dbt_bp_entry[3]; | |
563 | } | |
564 | else | |
565 | { | |
566 | buf[9] = dbt_bp_entry[3]; | |
567 | buf[10] = dbt_bp_entry[2]; | |
568 | buf[11] = dbt_bp_entry[1]; | |
569 | buf[12] = dbt_bp_entry[0]; | |
b4b4b794 KI |
570 | } |
571 | } | |
e22f895c | 572 | else |
b4b4b794 | 573 | { |
f5656ead | 574 | if (gdbarch_byte_order (target_gdbarch ()) == BFD_ENDIAN_BIG) |
b4b4b794 | 575 | { |
e22f895c | 576 | if ((bp_addr & 2) == 0) |
b4b4b794 | 577 | { |
e22f895c KI |
578 | buf[9] = dbt_bp_entry[0]; |
579 | buf[10] = dbt_bp_entry[1]; | |
580 | buf[11] = bp_data[i][2] & 0x7f; | |
581 | buf[12] = bp_data[i][3]; | |
b4b4b794 KI |
582 | } |
583 | else | |
584 | { | |
e22f895c KI |
585 | buf[9] = bp_data[i][0]; |
586 | buf[10] = bp_data[i][1]; | |
587 | buf[11] = dbt_bp_entry[0]; | |
588 | buf[12] = dbt_bp_entry[1]; | |
b4b4b794 KI |
589 | } |
590 | } | |
e22f895c | 591 | else |
b4b4b794 | 592 | { |
e22f895c | 593 | if ((bp_addr & 2) == 0) |
b4b4b794 | 594 | { |
e22f895c KI |
595 | buf[9] = bp_data[i][0]; |
596 | buf[10] = bp_data[i][1] & 0x7f; | |
597 | buf[11] = dbt_bp_entry[1]; | |
598 | buf[12] = dbt_bp_entry[0]; | |
b4b4b794 KI |
599 | } |
600 | else | |
601 | { | |
e22f895c KI |
602 | buf[9] = dbt_bp_entry[1]; |
603 | buf[10] = dbt_bp_entry[0]; | |
604 | buf[11] = bp_data[i][2]; | |
605 | buf[12] = bp_data[i][3]; | |
b4b4b794 | 606 | } |
e22f895c KI |
607 | } |
608 | } | |
609 | send_data (buf, 13); | |
610 | } | |
b4b4b794 | 611 | |
0df8b418 | 612 | /* Set access breaks. */ |
e22f895c KI |
613 | for (i = 0; i < max_access_breaks; i++) |
614 | { | |
615 | ab_addr = ab_address[i]; | |
b4b4b794 | 616 | |
e22f895c KI |
617 | if (ab_addr == 0x00000000) |
618 | continue; | |
b4b4b794 | 619 | |
0df8b418 | 620 | /* DBC register. */ |
f5656ead | 621 | if (gdbarch_byte_order (target_gdbarch ()) == BFD_ENDIAN_BIG) |
e22f895c KI |
622 | { |
623 | switch (ab_type[i]) | |
624 | { | |
625 | case 0: /* write watch */ | |
626 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8100 + 4 * i, 4, | |
627 | 0x00000086); | |
628 | break; | |
629 | case 1: /* read watch */ | |
630 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8100 + 4 * i, 4, | |
631 | 0x00000046); | |
632 | break; | |
633 | case 2: /* access watch */ | |
634 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8100 + 4 * i, 4, | |
635 | 0x00000006); | |
636 | break; | |
637 | } | |
638 | } | |
639 | else | |
640 | { | |
641 | switch (ab_type[i]) | |
642 | { | |
643 | case 0: /* write watch */ | |
644 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8100 + 4 * i, 4, | |
645 | 0x86000000); | |
646 | break; | |
647 | case 1: /* read watch */ | |
648 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8100 + 4 * i, 4, | |
649 | 0x46000000); | |
650 | break; | |
651 | case 2: /* access watch */ | |
652 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8100 + 4 * i, 4, | |
653 | 0x06000000); | |
654 | break; | |
b4b4b794 KI |
655 | } |
656 | } | |
657 | ||
0df8b418 | 658 | /* DBAH register. */ |
e22f895c KI |
659 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8180 + 4 * i, 4, ab_addr); |
660 | ||
0df8b418 | 661 | /* DBAL register. */ |
e22f895c KI |
662 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8200 + 4 * i, 4, |
663 | 0xffffffff); | |
664 | ||
0df8b418 | 665 | /* DBD register. */ |
e22f895c KI |
666 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8280 + 4 * i, 4, |
667 | 0x00000000); | |
668 | ||
0df8b418 | 669 | /* DBDM register. */ |
e22f895c KI |
670 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8300 + 4 * i, 4, |
671 | 0x00000000); | |
b4b4b794 KI |
672 | } |
673 | ||
0df8b418 | 674 | /* Resume program. */ |
e22f895c | 675 | send_cmd (SDI_EXEC_CPU); |
b4b4b794 KI |
676 | |
677 | /* Without this, some commands which require an active target (such as kill) | |
678 | won't work. This variable serves (at least) double duty as both the pid | |
679 | of the target process (if it has such), and as a flag indicating that a | |
680 | target is active. These functions should be split out into seperate | |
681 | variables, especially since GDB will someday have a notion of debugging | |
682 | several processes. */ | |
e5ef4d75 PA |
683 | inferior_ptid = remote_m32r_ptid; |
684 | add_thread_silent (remote_m32r_ptid); | |
b4b4b794 KI |
685 | |
686 | return; | |
687 | } | |
688 | ||
689 | /* Wait until the remote machine stops, then return, | |
690 | storing status in STATUS just as `wait' would. */ | |
691 | ||
692 | static void | |
693 | gdb_cntrl_c (int signo) | |
694 | { | |
695 | if (remote_debug) | |
696 | fprintf_unfiltered (gdb_stdlog, "interrupt\n"); | |
697 | interrupted = 1; | |
698 | } | |
699 | ||
700 | static ptid_t | |
117de6a9 | 701 | m32r_wait (struct target_ops *ops, |
61439e34 | 702 | ptid_t ptid, struct target_waitstatus *status, int options) |
b4b4b794 KI |
703 | { |
704 | static RETSIGTYPE (*prev_sigint) (); | |
705 | unsigned long bp_addr, pc_addr; | |
e22f895c | 706 | int ib_breakpoints; |
b4b4b794 KI |
707 | long i; |
708 | unsigned char buf[13]; | |
b4b4b794 KI |
709 | int ret, c; |
710 | ||
711 | if (remote_debug) | |
712 | fprintf_unfiltered (gdb_stdlog, "m32r_wait()\n"); | |
713 | ||
714 | status->kind = TARGET_WAITKIND_EXITED; | |
a493e3e2 | 715 | status->value.sig = GDB_SIGNAL_0; |
b4b4b794 KI |
716 | |
717 | interrupted = 0; | |
718 | prev_sigint = signal (SIGINT, gdb_cntrl_c); | |
719 | ||
0df8b418 | 720 | /* Wait for ready. */ |
b4b4b794 KI |
721 | buf[0] = SDI_WAIT_FOR_READY; |
722 | if (serial_write (sdi_desc, buf, 1) != 0) | |
8a3fe4f8 | 723 | error (_("Remote connection closed")); |
b4b4b794 KI |
724 | |
725 | while (1) | |
726 | { | |
727 | c = serial_readchar (sdi_desc, SDI_TIMEOUT); | |
728 | if (c < 0) | |
8a3fe4f8 | 729 | error (_("Remote connection closed")); |
b4b4b794 | 730 | |
717eb1cf | 731 | if (c == '-') /* error */ |
b4b4b794 KI |
732 | { |
733 | status->kind = TARGET_WAITKIND_STOPPED; | |
a493e3e2 | 734 | status->value.sig = GDB_SIGNAL_HUP; |
b4b4b794 KI |
735 | return inferior_ptid; |
736 | } | |
737 | else if (c == '+') /* stopped */ | |
738 | break; | |
739 | ||
740 | if (interrupted) | |
741 | ret = serial_write (sdi_desc, "!", 1); /* packet to interrupt */ | |
742 | else | |
743 | ret = serial_write (sdi_desc, ".", 1); /* packet to wait */ | |
744 | if (ret != 0) | |
8a3fe4f8 | 745 | error (_("Remote connection closed")); |
b4b4b794 KI |
746 | } |
747 | ||
748 | status->kind = TARGET_WAITKIND_STOPPED; | |
749 | if (interrupted) | |
a493e3e2 | 750 | status->value.sig = GDB_SIGNAL_INT; |
b4b4b794 | 751 | else |
a493e3e2 | 752 | status->value.sig = GDB_SIGNAL_TRAP; |
b4b4b794 KI |
753 | |
754 | interrupted = 0; | |
755 | signal (SIGINT, prev_sigint); | |
756 | ||
757 | check_mmu_status (); | |
758 | ||
0df8b418 | 759 | /* Recover parallel bit. */ |
b4b4b794 KI |
760 | if (last_pc_addr != 0xffffffff) |
761 | { | |
762 | buf[0] = SDI_WRITE_MEMORY; | |
f5656ead | 763 | if (gdbarch_byte_order (target_gdbarch ()) == BFD_ENDIAN_BIG) |
b4b4b794 KI |
764 | store_long_parameter (buf + 1, last_pc_addr); |
765 | else | |
766 | store_long_parameter (buf + 1, last_pc_addr - 1); | |
767 | store_long_parameter (buf + 5, 1); | |
768 | buf[9] = last_pc_addr_data[0]; | |
769 | send_data (buf, 10); | |
770 | last_pc_addr = 0xffffffff; | |
771 | } | |
772 | ||
e22f895c KI |
773 | if (use_ib_breakpoints) |
774 | ib_breakpoints = max_ib_breakpoints; | |
775 | else | |
776 | ib_breakpoints = 0; | |
b4b4b794 | 777 | |
0df8b418 | 778 | /* Set back pc by 2 if m32r is stopped with dbt. */ |
e22f895c KI |
779 | last_pc_addr = 0xffffffff; |
780 | send_one_arg_cmd (SDI_READ_CPU_REG, SDI_REG_BPC); | |
781 | pc_addr = recv_long_data () - 2; | |
782 | for (i = ib_breakpoints; i < MAX_BREAKPOINTS; i++) | |
783 | { | |
784 | if (pc_addr == bp_address[i]) | |
b4b4b794 | 785 | { |
e22f895c KI |
786 | send_two_arg_cmd (SDI_WRITE_CPU_REG, SDI_REG_BPC, pc_addr); |
787 | ||
788 | /* If there is a parallel instruction with +2 offset at pc | |
0df8b418 | 789 | address, we have to take care of it later. */ |
e22f895c | 790 | if ((pc_addr & 0x2) != 0) |
b4b4b794 | 791 | { |
f5656ead | 792 | if (gdbarch_byte_order (target_gdbarch ()) == BFD_ENDIAN_BIG) |
b4b4b794 | 793 | { |
e22f895c | 794 | if ((bp_data[i][2] & 0x80) != 0) |
b4b4b794 | 795 | { |
e22f895c KI |
796 | last_pc_addr = pc_addr; |
797 | last_pc_addr_data[0] = bp_data[i][2]; | |
798 | last_pc_addr_data[1] = bp_data[i][3]; | |
b4b4b794 | 799 | } |
e22f895c KI |
800 | } |
801 | else | |
802 | { | |
803 | if ((bp_data[i][1] & 0x80) != 0) | |
b4b4b794 | 804 | { |
e22f895c KI |
805 | last_pc_addr = pc_addr; |
806 | last_pc_addr_data[0] = bp_data[i][1]; | |
807 | last_pc_addr_data[1] = bp_data[i][0]; | |
b4b4b794 KI |
808 | } |
809 | } | |
b4b4b794 | 810 | } |
e22f895c | 811 | break; |
b4b4b794 | 812 | } |
e22f895c | 813 | } |
b4b4b794 | 814 | |
0df8b418 | 815 | /* Remove ib breakpoints. */ |
e22f895c KI |
816 | for (i = 0; i < ib_breakpoints; i++) |
817 | { | |
818 | if (bp_address[i] != 0xffffffff) | |
819 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8000 + 4 * i, 4, | |
820 | 0x00000000); | |
821 | } | |
0df8b418 | 822 | /* Remove dbt breakpoints. */ |
e22f895c KI |
823 | for (i = ib_breakpoints; i < MAX_BREAKPOINTS; i++) |
824 | { | |
825 | bp_addr = bp_address[i]; | |
826 | if (bp_addr != 0xffffffff) | |
b4b4b794 | 827 | { |
e22f895c KI |
828 | if (!mmu_on) |
829 | bp_addr &= 0x7fffffff; | |
492e5c6b | 830 | buf[0] = SDI_WRITE_MEMORY; |
e22f895c KI |
831 | store_long_parameter (buf + 1, bp_addr & 0xfffffffc); |
832 | store_long_parameter (buf + 5, 4); | |
833 | buf[9] = bp_data[i][0]; | |
834 | buf[10] = bp_data[i][1]; | |
835 | buf[11] = bp_data[i][2]; | |
836 | buf[12] = bp_data[i][3]; | |
837 | send_data (buf, 13); | |
b4b4b794 | 838 | } |
e22f895c | 839 | } |
b4b4b794 | 840 | |
0df8b418 | 841 | /* Remove access breaks. */ |
e22f895c KI |
842 | hit_watchpoint_addr = 0; |
843 | for (i = 0; i < max_access_breaks; i++) | |
844 | { | |
845 | if (ab_address[i] != 0x00000000) | |
b4b4b794 | 846 | { |
e22f895c KI |
847 | buf[0] = SDI_READ_MEMORY; |
848 | store_long_parameter (buf + 1, 0xffff8100 + 4 * i); | |
849 | store_long_parameter (buf + 5, 4); | |
850 | serial_write (sdi_desc, buf, 9); | |
851 | c = serial_readchar (sdi_desc, SDI_TIMEOUT); | |
852 | if (c != '-' && recv_data (buf, 4) != -1) | |
b4b4b794 | 853 | { |
f5656ead | 854 | if (gdbarch_byte_order (target_gdbarch ()) == BFD_ENDIAN_BIG) |
b4b4b794 | 855 | { |
e22f895c KI |
856 | if ((buf[3] & 0x1) == 0x1) |
857 | hit_watchpoint_addr = ab_address[i]; | |
858 | } | |
859 | else | |
860 | { | |
861 | if ((buf[0] & 0x1) == 0x1) | |
862 | hit_watchpoint_addr = ab_address[i]; | |
b4b4b794 | 863 | } |
b4b4b794 | 864 | } |
b4b4b794 | 865 | |
e22f895c KI |
866 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8100 + 4 * i, 4, |
867 | 0x00000000); | |
868 | } | |
b4b4b794 | 869 | } |
e22f895c KI |
870 | |
871 | if (remote_debug) | |
872 | fprintf_unfiltered (gdb_stdlog, "pc => 0x%lx\n", pc_addr); | |
b4b4b794 KI |
873 | |
874 | return inferior_ptid; | |
875 | } | |
876 | ||
877 | /* Terminate the open connection to the remote debugger. | |
878 | Use this when you want to detach and do something else | |
879 | with your gdb. */ | |
880 | static void | |
52554a0e | 881 | m32r_detach (struct target_ops *ops, const char *args, int from_tty) |
b4b4b794 KI |
882 | { |
883 | if (remote_debug) | |
884 | fprintf_unfiltered (gdb_stdlog, "m32r_detach(%d)\n", from_tty); | |
885 | ||
a493e3e2 | 886 | m32r_resume (ops, inferior_ptid, 0, GDB_SIGNAL_0); |
b4b4b794 | 887 | |
0df8b418 | 888 | /* Calls m32r_close to do the real work. */ |
7fdc1521 | 889 | unpush_target (ops); |
b4b4b794 KI |
890 | if (from_tty) |
891 | fprintf_unfiltered (gdb_stdlog, "Ending remote %s debugging\n", | |
892 | target_shortname); | |
893 | } | |
894 | ||
0df8b418 | 895 | /* Return the id of register number REGNO. */ |
b4b4b794 KI |
896 | |
897 | static int | |
898 | get_reg_id (int regno) | |
899 | { | |
900 | switch (regno) | |
901 | { | |
902 | case 20: | |
903 | return SDI_REG_BBPC; | |
904 | case 21: | |
905 | return SDI_REG_BPC; | |
906 | case 22: | |
907 | return SDI_REG_ACCL; | |
908 | case 23: | |
909 | return SDI_REG_ACCH; | |
910 | case 24: | |
911 | return SDI_REG_EVB; | |
912 | } | |
913 | ||
914 | return regno; | |
915 | } | |
916 | ||
b4b4b794 KI |
917 | /* Fetch register REGNO, or all registers if REGNO is -1. |
918 | Returns errno value. */ | |
919 | static void | |
28439f5e PA |
920 | m32r_fetch_register (struct target_ops *ops, |
921 | struct regcache *regcache, int regno) | |
b4b4b794 | 922 | { |
e17a4113 UW |
923 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
924 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
b4b4b794 | 925 | unsigned long val, val2, regid; |
b4b4b794 KI |
926 | |
927 | if (regno == -1) | |
28439f5e PA |
928 | { |
929 | for (regno = 0; | |
930 | regno < gdbarch_num_regs (get_regcache_arch (regcache)); | |
931 | regno++) | |
932 | m32r_fetch_register (ops, regcache, regno); | |
933 | } | |
b4b4b794 KI |
934 | else |
935 | { | |
948f8e3d | 936 | gdb_byte buffer[MAX_REGISTER_SIZE]; |
b4b4b794 KI |
937 | |
938 | regid = get_reg_id (regno); | |
e22f895c KI |
939 | send_one_arg_cmd (SDI_READ_CPU_REG, regid); |
940 | val = recv_long_data (); | |
b4b4b794 KI |
941 | |
942 | if (regid == SDI_REG_PSW) | |
943 | { | |
e22f895c KI |
944 | send_one_arg_cmd (SDI_READ_CPU_REG, SDI_REG_BBPSW); |
945 | val2 = recv_long_data (); | |
3e41d55f | 946 | val = ((0x00cf & val2) << 8) | ((0xcf00 & val) >> 8); |
b4b4b794 KI |
947 | } |
948 | ||
949 | if (remote_debug) | |
950 | fprintf_unfiltered (gdb_stdlog, "m32r_fetch_register(%d,0x%08lx)\n", | |
951 | regno, val); | |
952 | ||
953 | /* We got the number the register holds, but gdb expects to see a | |
954 | value in the target byte ordering. */ | |
e17a4113 | 955 | store_unsigned_integer (buffer, 4, byte_order, val); |
56be3814 | 956 | regcache_raw_supply (regcache, regno, buffer); |
b4b4b794 KI |
957 | } |
958 | return; | |
959 | } | |
960 | ||
b4b4b794 KI |
961 | /* Store register REGNO, or all if REGNO == 0. |
962 | Return errno value. */ | |
963 | static void | |
28439f5e PA |
964 | m32r_store_register (struct target_ops *ops, |
965 | struct regcache *regcache, int regno) | |
b4b4b794 KI |
966 | { |
967 | int regid; | |
968 | ULONGEST regval, tmp; | |
b4b4b794 KI |
969 | |
970 | if (regno == -1) | |
28439f5e PA |
971 | { |
972 | for (regno = 0; | |
973 | regno < gdbarch_num_regs (get_regcache_arch (regcache)); | |
974 | regno++) | |
975 | m32r_store_register (ops, regcache, regno); | |
976 | } | |
b4b4b794 KI |
977 | else |
978 | { | |
56be3814 | 979 | regcache_cooked_read_unsigned (regcache, regno, ®val); |
b4b4b794 KI |
980 | regid = get_reg_id (regno); |
981 | ||
982 | if (regid == SDI_REG_PSW) | |
983 | { | |
984 | unsigned long psw, bbpsw; | |
985 | ||
e22f895c KI |
986 | send_one_arg_cmd (SDI_READ_CPU_REG, SDI_REG_PSW); |
987 | psw = recv_long_data (); | |
b4b4b794 | 988 | |
e22f895c KI |
989 | send_one_arg_cmd (SDI_READ_CPU_REG, SDI_REG_BBPSW); |
990 | bbpsw = recv_long_data (); | |
b4b4b794 | 991 | |
3e41d55f | 992 | tmp = (0x00cf & psw) | ((0x00cf & regval) << 8); |
e22f895c | 993 | send_two_arg_cmd (SDI_WRITE_CPU_REG, SDI_REG_PSW, tmp); |
b4b4b794 | 994 | |
3e41d55f | 995 | tmp = (0x0030 & bbpsw) | ((0xcf00 & regval) >> 8); |
e22f895c | 996 | send_two_arg_cmd (SDI_WRITE_CPU_REG, SDI_REG_BBPSW, tmp); |
b4b4b794 KI |
997 | } |
998 | else | |
999 | { | |
e22f895c | 1000 | send_two_arg_cmd (SDI_WRITE_CPU_REG, regid, regval); |
b4b4b794 KI |
1001 | } |
1002 | ||
1003 | if (remote_debug) | |
1004 | fprintf_unfiltered (gdb_stdlog, "m32r_store_register(%d,0x%08lu)\n", | |
1005 | regno, (unsigned long) regval); | |
1006 | } | |
1007 | } | |
1008 | ||
1009 | /* Get ready to modify the registers array. On machines which store | |
1010 | individual registers, this doesn't need to do anything. On machines | |
1011 | which store all the registers in one fell swoop, this makes sure | |
1012 | that registers contains all the registers from the program being | |
1013 | debugged. */ | |
1014 | ||
1015 | static void | |
f32dbf8c | 1016 | m32r_prepare_to_store (struct target_ops *self, struct regcache *regcache) |
b4b4b794 | 1017 | { |
0df8b418 | 1018 | /* Do nothing, since we can store individual regs. */ |
b4b4b794 KI |
1019 | if (remote_debug) |
1020 | fprintf_unfiltered (gdb_stdlog, "m32r_prepare_to_store()\n"); | |
1021 | } | |
1022 | ||
1023 | static void | |
1024 | m32r_files_info (struct target_ops *target) | |
1025 | { | |
0d18d720 | 1026 | const char *file = "nothing"; |
b4b4b794 KI |
1027 | |
1028 | if (exec_bfd) | |
1029 | { | |
1030 | file = bfd_get_filename (exec_bfd); | |
1031 | printf_filtered ("\tAttached to %s running program %s\n", | |
1032 | chip_name, file); | |
1033 | } | |
1034 | } | |
1035 | ||
a1583b1f PA |
1036 | /* Helper for m32r_xfer_partial that handles memory transfers. |
1037 | Arguments are like target_xfer_partial. */ | |
1038 | ||
1039 | static enum target_xfer_status | |
1040 | m32r_xfer_memory (gdb_byte *readbuf, const gdb_byte *writebuf, | |
1041 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) | |
b4b4b794 KI |
1042 | { |
1043 | unsigned long taddr; | |
1044 | unsigned char buf[0x2000]; | |
1045 | int ret, c; | |
1046 | ||
1047 | taddr = memaddr; | |
1048 | ||
1049 | if (!mmu_on) | |
1050 | { | |
1051 | if ((taddr & 0xa0000000) == 0x80000000) | |
1052 | taddr &= 0x7fffffff; | |
1053 | } | |
1054 | ||
1055 | if (remote_debug) | |
1056 | { | |
a1583b1f PA |
1057 | if (writebuf != NULL) |
1058 | fprintf_unfiltered (gdb_stdlog, "m32r_xfer_memory(%s,%s,write)\n", | |
1059 | paddress (target_gdbarch (), memaddr), | |
1060 | plongest (len)); | |
b4b4b794 | 1061 | else |
a1583b1f PA |
1062 | fprintf_unfiltered (gdb_stdlog, "m32r_xfer_memory(%s,%s,read)\n", |
1063 | paddress (target_gdbarch (), memaddr), | |
1064 | plongest (len)); | |
b4b4b794 KI |
1065 | } |
1066 | ||
a1583b1f | 1067 | if (writebuf != NULL) |
b4b4b794 KI |
1068 | { |
1069 | buf[0] = SDI_WRITE_MEMORY; | |
1070 | store_long_parameter (buf + 1, taddr); | |
1071 | store_long_parameter (buf + 5, len); | |
1072 | if (len < 0x1000) | |
1073 | { | |
a1583b1f | 1074 | memcpy (buf + 9, writebuf, len); |
b4b4b794 KI |
1075 | ret = send_data (buf, len + 9) - 9; |
1076 | } | |
1077 | else | |
1078 | { | |
1079 | if (serial_write (sdi_desc, buf, 9) != 0) | |
1080 | { | |
1081 | if (remote_debug) | |
1082 | fprintf_unfiltered (gdb_stdlog, | |
1083 | "m32r_xfer_memory() failed\n"); | |
1084 | return 0; | |
1085 | } | |
a1583b1f | 1086 | ret = send_data (writebuf, len); |
b4b4b794 KI |
1087 | } |
1088 | } | |
1089 | else | |
1090 | { | |
1091 | buf[0] = SDI_READ_MEMORY; | |
1092 | store_long_parameter (buf + 1, taddr); | |
1093 | store_long_parameter (buf + 5, len); | |
1094 | if (serial_write (sdi_desc, buf, 9) != 0) | |
1095 | { | |
1096 | if (remote_debug) | |
1097 | fprintf_unfiltered (gdb_stdlog, "m32r_xfer_memory() failed\n"); | |
1098 | return 0; | |
1099 | } | |
1100 | ||
1101 | c = serial_readchar (sdi_desc, SDI_TIMEOUT); | |
1102 | if (c < 0 || c == '-') | |
1103 | { | |
1104 | if (remote_debug) | |
1105 | fprintf_unfiltered (gdb_stdlog, "m32r_xfer_memory() failed\n"); | |
1106 | return 0; | |
1107 | } | |
1108 | ||
a1583b1f | 1109 | ret = recv_data (readbuf, len); |
b4b4b794 KI |
1110 | } |
1111 | ||
1112 | if (ret <= 0) | |
1113 | { | |
1114 | if (remote_debug) | |
1115 | fprintf_unfiltered (gdb_stdlog, "m32r_xfer_memory() fails\n"); | |
a1583b1f | 1116 | return TARGET_XFER_E_IO; |
b4b4b794 KI |
1117 | } |
1118 | ||
a1583b1f PA |
1119 | *xfered_len = ret; |
1120 | return TARGET_XFER_OK; | |
1121 | } | |
1122 | ||
1123 | /* Target to_xfer_partial implementation. */ | |
1124 | ||
1125 | static enum target_xfer_status | |
1126 | m32r_xfer_partial (struct target_ops *ops, enum target_object object, | |
1127 | const char *annex, gdb_byte *readbuf, | |
1128 | const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, | |
1129 | ULONGEST *xfered_len) | |
1130 | { | |
1131 | switch (object) | |
1132 | { | |
1133 | case TARGET_OBJECT_MEMORY: | |
1134 | return m32r_xfer_memory (readbuf, writebuf, offset, len, xfered_len); | |
1135 | ||
1136 | default: | |
1137 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
1138 | readbuf, writebuf, offset, len, | |
1139 | xfered_len); | |
1140 | } | |
b4b4b794 KI |
1141 | } |
1142 | ||
1143 | static void | |
7d85a9c0 | 1144 | m32r_kill (struct target_ops *ops) |
b4b4b794 KI |
1145 | { |
1146 | if (remote_debug) | |
1147 | fprintf_unfiltered (gdb_stdlog, "m32r_kill()\n"); | |
1148 | ||
1149 | inferior_ptid = null_ptid; | |
e5ef4d75 | 1150 | delete_thread_silent (remote_m32r_ptid); |
b4b4b794 KI |
1151 | |
1152 | return; | |
1153 | } | |
1154 | ||
1155 | /* Clean up when a program exits. | |
1156 | ||
1157 | The program actually lives on in the remote processor's RAM, and may be | |
1158 | run again without a download. Don't leave it full of breakpoint | |
1159 | instructions. */ | |
1160 | ||
1161 | static void | |
136d6dae | 1162 | m32r_mourn_inferior (struct target_ops *ops) |
b4b4b794 KI |
1163 | { |
1164 | if (remote_debug) | |
1165 | fprintf_unfiltered (gdb_stdlog, "m32r_mourn_inferior()\n"); | |
1166 | ||
1167 | remove_breakpoints (); | |
1168 | generic_mourn_inferior (); | |
1169 | } | |
1170 | ||
1171 | static int | |
3db08215 MM |
1172 | m32r_insert_breakpoint (struct target_ops *ops, |
1173 | struct gdbarch *gdbarch, | |
a6d9a66e | 1174 | struct bp_target_info *bp_tgt) |
b4b4b794 | 1175 | { |
8181d85f | 1176 | CORE_ADDR addr = bp_tgt->placed_address; |
b4b4b794 KI |
1177 | int ib_breakpoints; |
1178 | unsigned char buf[13]; | |
1179 | int i, c; | |
1180 | ||
1181 | if (remote_debug) | |
ec20a626 | 1182 | fprintf_unfiltered (gdb_stdlog, "m32r_insert_breakpoint(%s,...)\n", |
5af949e3 | 1183 | paddress (gdbarch, addr)); |
b4b4b794 KI |
1184 | |
1185 | if (use_ib_breakpoints) | |
1186 | ib_breakpoints = max_ib_breakpoints; | |
1187 | else | |
1188 | ib_breakpoints = 0; | |
1189 | ||
1190 | for (i = 0; i < MAX_BREAKPOINTS; i++) | |
1191 | { | |
1192 | if (bp_address[i] == 0xffffffff) | |
1193 | { | |
1194 | bp_address[i] = addr; | |
1195 | if (i >= ib_breakpoints) | |
1196 | { | |
1197 | buf[0] = SDI_READ_MEMORY; | |
1198 | if (mmu_on) | |
1199 | store_long_parameter (buf + 1, addr & 0xfffffffc); | |
1200 | else | |
1201 | store_long_parameter (buf + 1, addr & 0x7ffffffc); | |
1202 | store_long_parameter (buf + 5, 4); | |
1203 | serial_write (sdi_desc, buf, 9); | |
1204 | c = serial_readchar (sdi_desc, SDI_TIMEOUT); | |
1205 | if (c != '-') | |
1206 | recv_data (bp_data[i], 4); | |
1207 | } | |
1208 | return 0; | |
1209 | } | |
1210 | } | |
1211 | ||
8a3fe4f8 | 1212 | error (_("Too many breakpoints")); |
b4b4b794 KI |
1213 | return 1; |
1214 | } | |
1215 | ||
1216 | static int | |
3db08215 MM |
1217 | m32r_remove_breakpoint (struct target_ops *ops, |
1218 | struct gdbarch *gdbarch, | |
a6d9a66e | 1219 | struct bp_target_info *bp_tgt) |
b4b4b794 | 1220 | { |
8181d85f | 1221 | CORE_ADDR addr = bp_tgt->placed_address; |
b4b4b794 KI |
1222 | int i; |
1223 | ||
1224 | if (remote_debug) | |
ec20a626 | 1225 | fprintf_unfiltered (gdb_stdlog, "m32r_remove_breakpoint(%s)\n", |
5af949e3 | 1226 | paddress (gdbarch, addr)); |
b4b4b794 KI |
1227 | |
1228 | for (i = 0; i < MAX_BREAKPOINTS; i++) | |
1229 | { | |
1230 | if (bp_address[i] == addr) | |
1231 | { | |
1232 | bp_address[i] = 0xffffffff; | |
1233 | break; | |
1234 | } | |
1235 | } | |
1236 | ||
1237 | return 0; | |
1238 | } | |
1239 | ||
1240 | static void | |
9cbe5fff | 1241 | m32r_load (struct target_ops *self, const char *args, int from_tty) |
b4b4b794 | 1242 | { |
9cbe5fff | 1243 | struct cleanup *old_chain = make_cleanup (null_cleanup, NULL); |
b4b4b794 KI |
1244 | asection *section; |
1245 | bfd *pbfd; | |
1246 | bfd_vma entry; | |
1247 | char *filename; | |
1248 | int quiet; | |
1249 | int nostart; | |
2b71414d | 1250 | struct timeval start_time, end_time; |
0df8b418 | 1251 | unsigned long data_count; /* Number of bytes transferred to memory. */ |
b4b4b794 KI |
1252 | static RETSIGTYPE (*prev_sigint) (); |
1253 | ||
0df8b418 | 1254 | /* for direct tcp connections, we can do a fast binary download. */ |
b4b4b794 KI |
1255 | quiet = 0; |
1256 | nostart = 0; | |
1257 | filename = NULL; | |
1258 | ||
1259 | while (*args != '\000') | |
1260 | { | |
9cbe5fff | 1261 | char *arg = extract_arg_const (&args); |
b4b4b794 | 1262 | |
9cbe5fff TT |
1263 | if (arg == NULL) |
1264 | break; | |
1265 | make_cleanup (xfree, arg); | |
b4b4b794 KI |
1266 | |
1267 | if (*arg != '-') | |
1268 | filename = arg; | |
1269 | else if (strncmp (arg, "-quiet", strlen (arg)) == 0) | |
1270 | quiet = 1; | |
1271 | else if (strncmp (arg, "-nostart", strlen (arg)) == 0) | |
1272 | nostart = 1; | |
1273 | else | |
8a3fe4f8 | 1274 | error (_("Unknown option `%s'"), arg); |
b4b4b794 KI |
1275 | } |
1276 | ||
1277 | if (!filename) | |
1278 | filename = get_exec_file (1); | |
1279 | ||
1c00ec6b | 1280 | pbfd = gdb_bfd_open (filename, gnutarget, -1); |
b4b4b794 | 1281 | if (pbfd == NULL) |
9cbe5fff TT |
1282 | perror_with_name (filename); |
1283 | make_cleanup_bfd_unref (pbfd); | |
b4b4b794 KI |
1284 | |
1285 | if (!bfd_check_format (pbfd, bfd_object)) | |
8a3fe4f8 | 1286 | error (_("\"%s\" is not an object file: %s"), filename, |
b4b4b794 KI |
1287 | bfd_errmsg (bfd_get_error ())); |
1288 | ||
2b71414d | 1289 | gettimeofday (&start_time, NULL); |
b4b4b794 KI |
1290 | data_count = 0; |
1291 | ||
1292 | interrupted = 0; | |
1293 | prev_sigint = signal (SIGINT, gdb_cntrl_c); | |
1294 | ||
1295 | for (section = pbfd->sections; section; section = section->next) | |
1296 | { | |
1297 | if (bfd_get_section_flags (pbfd, section) & SEC_LOAD) | |
1298 | { | |
1299 | bfd_vma section_address; | |
1300 | bfd_size_type section_size; | |
1301 | file_ptr fptr; | |
1302 | int n; | |
1303 | ||
1304 | section_address = bfd_section_lma (pbfd, section); | |
2c500098 | 1305 | section_size = bfd_get_section_size (section); |
b4b4b794 KI |
1306 | |
1307 | if (!mmu_on) | |
1308 | { | |
1309 | if ((section_address & 0xa0000000) == 0x80000000) | |
1310 | section_address &= 0x7fffffff; | |
1311 | } | |
1312 | ||
1313 | if (!quiet) | |
1314 | printf_filtered ("[Loading section %s at 0x%lx (%d bytes)]\n", | |
1315 | bfd_get_section_name (pbfd, section), | |
ec20a626 UW |
1316 | (unsigned long) section_address, |
1317 | (int) section_size); | |
b4b4b794 KI |
1318 | |
1319 | fptr = 0; | |
1320 | ||
1321 | data_count += section_size; | |
1322 | ||
1323 | n = 0; | |
1324 | while (section_size > 0) | |
1325 | { | |
1326 | char unsigned buf[0x1000 + 9]; | |
1327 | int count; | |
1328 | ||
1329 | count = min (section_size, 0x1000); | |
1330 | ||
1331 | buf[0] = SDI_WRITE_MEMORY; | |
1332 | store_long_parameter (buf + 1, section_address); | |
1333 | store_long_parameter (buf + 5, count); | |
1334 | ||
1335 | bfd_get_section_contents (pbfd, section, buf + 9, fptr, count); | |
1336 | if (send_data (buf, count + 9) <= 0) | |
8a3fe4f8 | 1337 | error (_("Error while downloading %s section."), |
b4b4b794 KI |
1338 | bfd_get_section_name (pbfd, section)); |
1339 | ||
1340 | if (!quiet) | |
1341 | { | |
1342 | printf_unfiltered ("."); | |
1343 | if (n++ > 60) | |
1344 | { | |
1345 | printf_unfiltered ("\n"); | |
1346 | n = 0; | |
1347 | } | |
1348 | gdb_flush (gdb_stdout); | |
1349 | } | |
1350 | ||
1351 | section_address += count; | |
1352 | fptr += count; | |
1353 | section_size -= count; | |
1354 | ||
1355 | if (interrupted) | |
1356 | break; | |
1357 | } | |
1358 | ||
1359 | if (!quiet && !interrupted) | |
1360 | { | |
1361 | printf_unfiltered ("done.\n"); | |
1362 | gdb_flush (gdb_stdout); | |
1363 | } | |
1364 | } | |
1365 | ||
1366 | if (interrupted) | |
1367 | { | |
1368 | printf_unfiltered ("Interrupted.\n"); | |
1369 | break; | |
1370 | } | |
1371 | } | |
1372 | ||
1373 | interrupted = 0; | |
1374 | signal (SIGINT, prev_sigint); | |
1375 | ||
2b71414d | 1376 | gettimeofday (&end_time, NULL); |
b4b4b794 | 1377 | |
0df8b418 | 1378 | /* Make the PC point at the start address. */ |
b4b4b794 | 1379 | if (exec_bfd) |
fb14de7b UW |
1380 | regcache_write_pc (get_current_regcache (), |
1381 | bfd_get_start_address (exec_bfd)); | |
b4b4b794 | 1382 | |
0df8b418 | 1383 | inferior_ptid = null_ptid; /* No process now. */ |
e5ef4d75 | 1384 | delete_thread_silent (remote_m32r_ptid); |
b4b4b794 KI |
1385 | |
1386 | /* This is necessary because many things were based on the PC at the time | |
1387 | that we attached to the monitor, which is no longer valid now that we | |
1388 | have loaded new code (and just changed the PC). Another way to do this | |
1389 | might be to call normal_stop, except that the stack may not be valid, | |
0df8b418 | 1390 | and things would get horribly confused... */ |
b4b4b794 | 1391 | |
c1e56572 | 1392 | clear_symtab_users (0); |
b4b4b794 KI |
1393 | |
1394 | if (!nostart) | |
1395 | { | |
1396 | entry = bfd_get_start_address (pbfd); | |
1397 | ||
1398 | if (!quiet) | |
ec20a626 UW |
1399 | printf_unfiltered ("[Starting %s at 0x%lx]\n", filename, |
1400 | (unsigned long) entry); | |
b4b4b794 KI |
1401 | } |
1402 | ||
2b71414d DJ |
1403 | print_transfer_performance (gdb_stdout, data_count, 0, &start_time, |
1404 | &end_time); | |
b4b4b794 KI |
1405 | |
1406 | do_cleanups (old_chain); | |
1407 | } | |
1408 | ||
1409 | static void | |
1eab8a48 | 1410 | m32r_stop (struct target_ops *self, ptid_t ptid) |
b4b4b794 | 1411 | { |
b4b4b794 KI |
1412 | if (remote_debug) |
1413 | fprintf_unfiltered (gdb_stdlog, "m32r_stop()\n"); | |
1414 | ||
e22f895c | 1415 | send_cmd (SDI_STOP_CPU); |
b4b4b794 KI |
1416 | |
1417 | return; | |
1418 | } | |
1419 | ||
1420 | ||
37814c18 KI |
1421 | /* Tell whether this target can support a hardware breakpoint. CNT |
1422 | is the number of hardware breakpoints already installed. This | |
d92524f1 | 1423 | implements the target_can_use_hardware_watchpoint macro. */ |
b4b4b794 | 1424 | |
63807e1d | 1425 | static int |
5461485a TT |
1426 | m32r_can_use_hw_watchpoint (struct target_ops *self, |
1427 | int type, int cnt, int othertype) | |
b4b4b794 | 1428 | { |
37814c18 | 1429 | return sdi_desc != NULL && cnt < max_access_breaks; |
b4b4b794 KI |
1430 | } |
1431 | ||
1432 | /* Set a data watchpoint. ADDR and LEN should be obvious. TYPE is 0 | |
1433 | for a write watchpoint, 1 for a read watchpoint, or 2 for a read/write | |
0df8b418 | 1434 | watchpoint. */ |
b4b4b794 | 1435 | |
63807e1d | 1436 | static int |
7bb99c53 TT |
1437 | m32r_insert_watchpoint (struct target_ops *self, |
1438 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 1439 | struct expression *cond) |
b4b4b794 KI |
1440 | { |
1441 | int i; | |
1442 | ||
1443 | if (remote_debug) | |
ec20a626 | 1444 | fprintf_unfiltered (gdb_stdlog, "m32r_insert_watchpoint(%s,%d,%d)\n", |
f5656ead | 1445 | paddress (target_gdbarch (), addr), len, type); |
b4b4b794 KI |
1446 | |
1447 | for (i = 0; i < MAX_ACCESS_BREAKS; i++) | |
1448 | { | |
1449 | if (ab_address[i] == 0x00000000) | |
1450 | { | |
1451 | ab_address[i] = addr; | |
1452 | ab_size[i] = len; | |
1453 | ab_type[i] = type; | |
1454 | return 0; | |
1455 | } | |
1456 | } | |
1457 | ||
8a3fe4f8 | 1458 | error (_("Too many watchpoints")); |
b4b4b794 KI |
1459 | return 1; |
1460 | } | |
1461 | ||
63807e1d | 1462 | static int |
11b5219a TT |
1463 | m32r_remove_watchpoint (struct target_ops *self, |
1464 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 1465 | struct expression *cond) |
b4b4b794 KI |
1466 | { |
1467 | int i; | |
1468 | ||
1469 | if (remote_debug) | |
ec20a626 | 1470 | fprintf_unfiltered (gdb_stdlog, "m32r_remove_watchpoint(%s,%d,%d)\n", |
f5656ead | 1471 | paddress (target_gdbarch (), addr), len, type); |
b4b4b794 KI |
1472 | |
1473 | for (i = 0; i < MAX_ACCESS_BREAKS; i++) | |
1474 | { | |
1475 | if (ab_address[i] == addr) | |
1476 | { | |
1477 | ab_address[i] = 0x00000000; | |
1478 | break; | |
1479 | } | |
1480 | } | |
1481 | ||
1482 | return 0; | |
1483 | } | |
1484 | ||
63807e1d | 1485 | static int |
4aa7a7f5 | 1486 | m32r_stopped_data_address (struct target_ops *target, CORE_ADDR *addr_p) |
b4b4b794 | 1487 | { |
4aa7a7f5 | 1488 | int rc = 0; |
123f5f96 | 1489 | |
4aa7a7f5 JJ |
1490 | if (hit_watchpoint_addr != 0x00000000) |
1491 | { | |
1492 | *addr_p = hit_watchpoint_addr; | |
1493 | rc = 1; | |
1494 | } | |
1495 | return rc; | |
b4b4b794 KI |
1496 | } |
1497 | ||
63807e1d | 1498 | static int |
6a109b6b | 1499 | m32r_stopped_by_watchpoint (struct target_ops *ops) |
b4b4b794 | 1500 | { |
4aa7a7f5 | 1501 | CORE_ADDR addr; |
123f5f96 | 1502 | |
4aa7a7f5 | 1503 | return m32r_stopped_data_address (¤t_target, &addr); |
b4b4b794 KI |
1504 | } |
1505 | ||
4d6c6261 PA |
1506 | /* Check to see if a thread is still alive. */ |
1507 | ||
1508 | static int | |
28439f5e | 1509 | m32r_thread_alive (struct target_ops *ops, ptid_t ptid) |
4d6c6261 PA |
1510 | { |
1511 | if (ptid_equal (ptid, remote_m32r_ptid)) | |
1512 | /* The main task is always alive. */ | |
1513 | return 1; | |
1514 | ||
1515 | return 0; | |
1516 | } | |
1517 | ||
1518 | /* Convert a thread ID to a string. Returns the string in a static | |
1519 | buffer. */ | |
1520 | ||
1521 | static char * | |
117de6a9 | 1522 | m32r_pid_to_str (struct target_ops *ops, ptid_t ptid) |
4d6c6261 PA |
1523 | { |
1524 | static char buf[64]; | |
1525 | ||
1526 | if (ptid_equal (remote_m32r_ptid, ptid)) | |
1527 | { | |
1528 | xsnprintf (buf, sizeof buf, "Thread <main>"); | |
1529 | return buf; | |
1530 | } | |
1531 | ||
1532 | return normal_pid_to_str (ptid); | |
1533 | } | |
b4b4b794 KI |
1534 | |
1535 | static void | |
1536 | sdireset_command (char *args, int from_tty) | |
1537 | { | |
b4b4b794 KI |
1538 | if (remote_debug) |
1539 | fprintf_unfiltered (gdb_stdlog, "m32r_sdireset()\n"); | |
1540 | ||
e22f895c | 1541 | send_cmd (SDI_OPEN); |
b4b4b794 KI |
1542 | |
1543 | inferior_ptid = null_ptid; | |
e5ef4d75 | 1544 | delete_thread_silent (remote_m32r_ptid); |
b4b4b794 KI |
1545 | } |
1546 | ||
1547 | ||
1548 | static void | |
1549 | sdistatus_command (char *args, int from_tty) | |
1550 | { | |
1551 | unsigned char buf[4096]; | |
1552 | int i, c; | |
1553 | ||
1554 | if (remote_debug) | |
1555 | fprintf_unfiltered (gdb_stdlog, "m32r_sdireset()\n"); | |
1556 | ||
1557 | if (!sdi_desc) | |
1558 | return; | |
1559 | ||
e22f895c | 1560 | send_cmd (SDI_STATUS); |
b4b4b794 KI |
1561 | for (i = 0; i < 4096; i++) |
1562 | { | |
1563 | c = serial_readchar (sdi_desc, SDI_TIMEOUT); | |
1564 | if (c < 0) | |
717eb1cf | 1565 | return; |
b4b4b794 KI |
1566 | buf[i] = c; |
1567 | if (c == 0) | |
717eb1cf AC |
1568 | break; |
1569 | } | |
b4b4b794 KI |
1570 | |
1571 | printf_filtered ("%s", buf); | |
1572 | } | |
1573 | ||
1574 | ||
1575 | static void | |
1576 | debug_chaos_command (char *args, int from_tty) | |
1577 | { | |
1578 | unsigned char buf[3]; | |
1579 | ||
1580 | buf[0] = SDI_SET_ATTR; | |
1581 | buf[1] = SDI_ATTR_CACHE; | |
1582 | buf[2] = SDI_CACHE_TYPE_CHAOS; | |
1583 | send_data (buf, 3); | |
1584 | } | |
1585 | ||
1586 | ||
1587 | static void | |
1588 | use_debug_dma_command (char *args, int from_tty) | |
1589 | { | |
1590 | unsigned char buf[3]; | |
1591 | ||
1592 | buf[0] = SDI_SET_ATTR; | |
1593 | buf[1] = SDI_ATTR_MEM_ACCESS; | |
1594 | buf[2] = SDI_MEM_ACCESS_DEBUG_DMA; | |
1595 | send_data (buf, 3); | |
1596 | } | |
1597 | ||
1598 | static void | |
1599 | use_mon_code_command (char *args, int from_tty) | |
1600 | { | |
1601 | unsigned char buf[3]; | |
1602 | ||
1603 | buf[0] = SDI_SET_ATTR; | |
1604 | buf[1] = SDI_ATTR_MEM_ACCESS; | |
1605 | buf[2] = SDI_MEM_ACCESS_MON_CODE; | |
1606 | send_data (buf, 3); | |
1607 | } | |
1608 | ||
1609 | ||
1610 | static void | |
1611 | use_ib_breakpoints_command (char *args, int from_tty) | |
1612 | { | |
1613 | use_ib_breakpoints = 1; | |
1614 | } | |
1615 | ||
1616 | static void | |
1617 | use_dbt_breakpoints_command (char *args, int from_tty) | |
1618 | { | |
1619 | use_ib_breakpoints = 0; | |
1620 | } | |
1621 | ||
c35b1492 PA |
1622 | static int |
1623 | m32r_return_one (struct target_ops *target) | |
1624 | { | |
1625 | return 1; | |
1626 | } | |
b4b4b794 | 1627 | |
aeaec162 TT |
1628 | /* Implementation of the to_has_execution method. */ |
1629 | ||
1630 | static int | |
1631 | m32r_has_execution (struct target_ops *target, ptid_t the_ptid) | |
1632 | { | |
1633 | return 1; | |
1634 | } | |
1635 | ||
0df8b418 | 1636 | /* Define the target subroutine names. */ |
b4b4b794 KI |
1637 | |
1638 | struct target_ops m32r_ops; | |
1639 | ||
1640 | static void | |
1641 | init_m32r_ops (void) | |
1642 | { | |
1643 | m32r_ops.to_shortname = "m32rsdi"; | |
1644 | m32r_ops.to_longname = "Remote M32R debugging over SDI interface"; | |
1645 | m32r_ops.to_doc = "Use an M32R board using SDI debugging protocol."; | |
1646 | m32r_ops.to_open = m32r_open; | |
1647 | m32r_ops.to_close = m32r_close; | |
1648 | m32r_ops.to_detach = m32r_detach; | |
1649 | m32r_ops.to_resume = m32r_resume; | |
1650 | m32r_ops.to_wait = m32r_wait; | |
1651 | m32r_ops.to_fetch_registers = m32r_fetch_register; | |
1652 | m32r_ops.to_store_registers = m32r_store_register; | |
1653 | m32r_ops.to_prepare_to_store = m32r_prepare_to_store; | |
a1583b1f | 1654 | m32r_ops.to_xfer_partial = m32r_xfer_partial; |
b4b4b794 KI |
1655 | m32r_ops.to_files_info = m32r_files_info; |
1656 | m32r_ops.to_insert_breakpoint = m32r_insert_breakpoint; | |
1657 | m32r_ops.to_remove_breakpoint = m32r_remove_breakpoint; | |
37814c18 KI |
1658 | m32r_ops.to_can_use_hw_breakpoint = m32r_can_use_hw_watchpoint; |
1659 | m32r_ops.to_insert_watchpoint = m32r_insert_watchpoint; | |
1660 | m32r_ops.to_remove_watchpoint = m32r_remove_watchpoint; | |
1661 | m32r_ops.to_stopped_by_watchpoint = m32r_stopped_by_watchpoint; | |
1662 | m32r_ops.to_stopped_data_address = m32r_stopped_data_address; | |
b4b4b794 KI |
1663 | m32r_ops.to_kill = m32r_kill; |
1664 | m32r_ops.to_load = m32r_load; | |
1665 | m32r_ops.to_create_inferior = m32r_create_inferior; | |
1666 | m32r_ops.to_mourn_inferior = m32r_mourn_inferior; | |
1667 | m32r_ops.to_stop = m32r_stop; | |
49d03eab | 1668 | m32r_ops.to_log_command = serial_log_command; |
4d6c6261 PA |
1669 | m32r_ops.to_thread_alive = m32r_thread_alive; |
1670 | m32r_ops.to_pid_to_str = m32r_pid_to_str; | |
b4b4b794 | 1671 | m32r_ops.to_stratum = process_stratum; |
c35b1492 PA |
1672 | m32r_ops.to_has_all_memory = m32r_return_one; |
1673 | m32r_ops.to_has_memory = m32r_return_one; | |
1674 | m32r_ops.to_has_stack = m32r_return_one; | |
1675 | m32r_ops.to_has_registers = m32r_return_one; | |
aeaec162 | 1676 | m32r_ops.to_has_execution = m32r_has_execution; |
b4b4b794 KI |
1677 | m32r_ops.to_magic = OPS_MAGIC; |
1678 | }; | |
1679 | ||
1680 | ||
1681 | extern initialize_file_ftype _initialize_remote_m32r; | |
1682 | ||
1683 | void | |
1684 | _initialize_remote_m32r (void) | |
1685 | { | |
1686 | int i; | |
1687 | ||
1688 | init_m32r_ops (); | |
1689 | ||
0df8b418 | 1690 | /* Initialize breakpoints. */ |
b4b4b794 KI |
1691 | for (i = 0; i < MAX_BREAKPOINTS; i++) |
1692 | bp_address[i] = 0xffffffff; | |
1693 | ||
0df8b418 | 1694 | /* Initialize access breaks. */ |
b4b4b794 KI |
1695 | for (i = 0; i < MAX_ACCESS_BREAKS; i++) |
1696 | ab_address[i] = 0x00000000; | |
1697 | ||
1698 | add_target (&m32r_ops); | |
1699 | ||
1700 | add_com ("sdireset", class_obscure, sdireset_command, | |
1bedd215 | 1701 | _("Reset SDI connection.")); |
b4b4b794 KI |
1702 | |
1703 | add_com ("sdistatus", class_obscure, sdistatus_command, | |
1bedd215 | 1704 | _("Show status of SDI connection.")); |
b4b4b794 KI |
1705 | |
1706 | add_com ("debug_chaos", class_obscure, debug_chaos_command, | |
1bedd215 | 1707 | _("Debug M32R/Chaos.")); |
b4b4b794 KI |
1708 | |
1709 | add_com ("use_debug_dma", class_obscure, use_debug_dma_command, | |
1bedd215 | 1710 | _("Use debug DMA mem access.")); |
b4b4b794 | 1711 | add_com ("use_mon_code", class_obscure, use_mon_code_command, |
1bedd215 | 1712 | _("Use mon code mem access.")); |
b4b4b794 KI |
1713 | |
1714 | add_com ("use_ib_break", class_obscure, use_ib_breakpoints_command, | |
1bedd215 | 1715 | _("Set breakpoints by IB break.")); |
b4b4b794 | 1716 | add_com ("use_dbt_break", class_obscure, use_dbt_breakpoints_command, |
1bedd215 | 1717 | _("Set breakpoints by dbt.")); |
e5ef4d75 PA |
1718 | |
1719 | /* Yes, 42000 is arbitrary. The only sense out of it, is that it | |
1720 | isn't 0. */ | |
1721 | remote_m32r_ptid = ptid_build (42000, 0, 42000); | |
b4b4b794 | 1722 | } |